Build error on master branch

[Alejandro Colomar]

Hi!

I'm trying to test some patch I've written, and found some build error
that seems entirely unrelated to my patch.  git-blame(1) points to:

	52d754a1a620 (2025-09-09; "Fortran: make STAT/LSTAT/FSTAT intrinsics generic [PR82480]")

The build error is:

	/home/alx/src/gnu/gcc/fwd3/./prev-gcc/xg++ -B/home/alx/src/gnu/gcc/fwd3/./prev-gcc/ -B/opt/local/gnu/gcc/fwd/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs  -I/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu  -I/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/include  -I/home/alx/src/gnu/gcc/fwd/libstdc++-v3/libsupc++ -L/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs  -fno-PIE -c  -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC    -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-error=narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Wconditionally-supported -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror  -DHAVE_CONFIG_H -fno-PIE -I. -Ifortran -I../../fwd/gcc -I../../fwd/gcc/fortran -I../../fwd/gcc/../include  -I../../fwd/gcc/../libcpp/include -I../../fwd/gcc/../libcody  -I../../fwd/gcc/../libdecnumber -I../../fwd/gcc/../libdecnumber/bid -I../libdecnumber -I../../fwd/gcc/../libbacktrace   -o fortran/trans-intrinsic.o -MT fortran/trans-intrinsic.o -MMD -MP -MF fortran/.deps/trans-intrinsic.TPo ../../fwd/gcc/fortran/trans-intrinsic.cc
	In function ‘tree_node* conv_intrinsic_fstat_lstat_stat_sub(gfc_code*)’,
	    inlined from ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’ at ../../fwd/gcc/fortran/trans-intrinsic.cc:13477:49:
	../../fwd/gcc/fortran/trans-intrinsic.cc:5964:31: error: ‘unit’ may be used uninitialized [-Werror=maybe-uninitialized]
	 5964 |     tmp = build_call_expr_loc (input_location, tmp, 3, unit, vals,
	      |           ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	 5965 |                                stat ? arg3 : null_pointer_node);
	      |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	../../fwd/gcc/fortran/trans-intrinsic.cc: In function ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’:
	../../fwd/gcc/fortran/trans-intrinsic.cc:5881:8: note: ‘unit’ was declared here
	 5881 |   tree unit;
	      |        ^~~~
	In function ‘tree_node* conv_intrinsic_fstat_lstat_stat_sub(gfc_code*)’,
	    inlined from ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’ at ../../fwd/gcc/fortran/trans-intrinsic.cc:13477:49:
	../../fwd/gcc/fortran/trans-intrinsic.cc:5967:31: error: ‘name’ may be used uninitialized [-Werror=maybe-uninitialized]
	 5967 |     tmp = build_call_expr_loc (input_location, tmp, 4, name, vals,
	      |           ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	 5968 |                                stat ? arg3 : null_pointer_node, slen);
	      |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	../../fwd/gcc/fortran/trans-intrinsic.cc: In function ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’:
	../../fwd/gcc/fortran/trans-intrinsic.cc:5882:8: note: ‘name’ was declared here
	 5882 |   tree name, slen;
	      |        ^~~~
	In function ‘tree_node* conv_intrinsic_fstat_lstat_stat_sub(gfc_code*)’,
	    inlined from ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’ at ../../fwd/gcc/fortran/trans-intrinsic.cc:13477:49:
	../../fwd/gcc/fortran/trans-intrinsic.cc:5967:31: error: ‘slen’ may be used uninitialized [-Werror=maybe-uninitialized]
	 5967 |     tmp = build_call_expr_loc (input_location, tmp, 4, name, vals,
	      |           ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	 5968 |                                stat ? arg3 : null_pointer_node, slen);
	      |                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	../../fwd/gcc/fortran/trans-intrinsic.cc: In function ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’:
	../../fwd/gcc/fortran/trans-intrinsic.cc:5882:14: note: ‘slen’ was declared here
	 5882 |   tree name, slen;
	      |              ^~~~


Have a lovely night!
Alex

-- 
<https://www.alejandro-colomar.es>
Use port 80 (that is, <...:80/>).
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